Question Detail

CHM 101 Quantum Theory and Atomic Structure Objective Question
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Question

How did Mendeleev arrange elements in his periodic table?
Options
A In order of increasing atomic number
B In order of increasing atomic mass
Correct Answer
C Alphabetically by element name
D In order of date of discovery
Correct Answer

Option B is the correct answer.

Detailed Explanation

Mendeleev arranged the elements in order of increasing atomic mass. This arrangement revealed periodic trends in chemical properties. The modern periodic table is arranged by atomic number, which corrected some anomalies in Mendeleev's arrangement.

Hint

Consider how Mendeleev organized his table in the 19th century before atomic numbers were known.

Question Info

Course: CHM 101
Topic: Quantum Theory and Atomic Structure
Type: Objective
Difficulty: Not specified
Question 1543 of 1872
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